Phil Sim, a professional with technology editor journalist background, has written three interesting blog posts recently, discussing the much-rumored Google OS (1, 2, 3). He speculates that all user's data will be stored online on Google's servers and so one's desktop and files can be retrieved exactly as left by any other PC station, anywhere in the world, by simply using his Gmail credentials. It's like having your OS on a usb key with you at all times, only, without the usb key...